<template>
  <view>
      <view class="goods-list">
        <view v-for="(item, i) in goodsList" :key="i" @click="gotoDetail(item)">
          <!-- 为 my-goods 组件动态绑定 goods 属性的值 -->
          <my-goods :goods="item"></my-goods>
        </view>
      </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        // 请求参数对象
        queryObj: {
          // 查询关键词
          query: '',
          // 商品分类Id
          cid: '',
          // 页码值
          pagenum: 1,
          // 每页显示多少条数据
          pagesize: 10,
          //节流阀
          isLoding:false 
        },
        defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png',
        // 商品列表的数据
        goodsList: [],
        // 总数量，用来实现分页
        total: 0
      }
    },
    methods: {
      // 获取商品列表数据的方法
      async getGoodsList(cb) {
        this.isLoding=true
        // 发起请求
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/goods/search')
        if (res.meta.status !== 200) return uni.$showMsg()
        this.isLoding=false
        cb && cb()
        // 为数据赋值
        this.goodsList = [...this.goodsList,...res.message.goods]
        this.total = res.message.total
      },
      gotoDetail(item) {
        uni.navigateTo({
          url: '/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id
        })
      },
      onReachBottom(){
        if(this.isLoding) return
        
        this.queryObj.pagenum+=1
        this.getGoodsList()
      },
      onPullDownRefresh(){
        // 1. 重置关键数据
          this.queryObj.pagenum = 1
          this.total = 0
          this.isloading = false
          this.goodsList = []
        
          // 2. 重新发起请求
          this.getGoodsList(() => uni.stopPullDownRefresh())
      }
    },
    onLoad(options) {
      // 将页面参数转存到 this.queryObj 对象中
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''
      // 调用获取商品列表数据的方法
      this.getGoodsList()
    }

  }
</script>

<style lang="scss">
.goods-item {
  display: flex;
  padding: 10px 5px;
  border-bottom: 1px solid #f0f0f0;

  .goods-item-left {
    margin-right: 5px;

    .goods-pic {
      width: 100px;
      height: 100px;
      display: block;
    }
  }

  .goods-item-right {
    display: flex;
    flex-direction: column;
    justify-content: space-between;

    .goods-name {
      font-size: 13px;
    }

    .goods-price {
      font-size: 16px;
      color: #c00000;
    }
  }
}
</style>
